Adjustable gearing



Feb. 24, 1925.

W. J. RUDOLPH ADJUSTABLE GEARING Fild Dec 3. 29

Patented Feb. 24', 1925.

UNITED STATES 1,527,443 PATENT OFFICE.

*WALTEE J. RUDOLPH, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE IMPERIAL BRASS MANUFACTURING COMPANY, 01 CHICAGO, ILLINO'IS, A CORPORATION OF ILLI- NOIS.

ADJUSTABLE GEARING.

Application filed December .29, 1928. Serial No. 683,272.

To all whom it may concern:

Be it known that I, WALTER J. RUDOLPH,

' a citizen of the United States, and aresident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Adjustable Gearing, of which the following is a specification.

My invention is concerned with a novel gearing and an adjustable mounting therefor, which while it is designed prlmarily for use in connection with the novel carburetoradjusting devices shown in my application for Letters Patent of the United States, No. 604,266, filed December 1, 1922,-n1ay be ,employed elsewhere, if desired.

To illustrate my invention, I annex hereto a sheet of drawings in which the same reference numerals represent identical parts in all the figures, of which,--

Fig. 1 is a perspective view of the complete adjusting device mounted upon the mstrument board of an automobile having a woodendash board;

Fig. 2 is a side elevation and Fig. 3 a top.

plan view of the portion thereof embodying my novel gearing and mount1ng;.

Fig. 4 is a central vertical section of the gearing and gear mounting of Flgs. 2 and 3, but showing the same as mounted upon a metallic dash board; 0

Fig. 5 is a front elevation of the attaching plate of the gear mounting shown as detached; and

Figs. 6 and 7 are perspective views of two bearing plates detached. r A ssuming now that my novel gearing and adjustable mounting therefor are utilized 1n the carburetor adjusting device of my aforesaid application No. 604,266, and referring to Fig. 1, 10 is the instrument board, if one is employed, 11 is the dashboard having the customary slot 12 therethrough, and 13 is the carburetor of the engine for the Ford automobile. The carburetor gas needle 14 is threaded in the top of the carburetor and is provided with the cross head 15 having the apertures 16 therein. Prior to my invention, the carburetor adjustment has been controlled by the rod 17 having the fork 18 on its lower end extending throu h the holes 16, and, as indicated in dotte lines, with the rod extendingl up through the 'slot 12 and terminating in t e rin 19 by which it was manipulated. So much of the apparatus is pld, and, per se,'forms no part of my inven- In order readily to make a more perfect ad ustment of the position of the needle 14, I prov1de the dial member 20, which preferably consists of a sheet-metal plate having the body portion thereof substantially semicircular and with the graduations 21 thereon. The bod 20 of the dial is provided with a pair 0 apertures for the screw bolts 23, and also has the flange 24 turned at right angles to the body.

(Jo-operating with the dial member is the supporting late, preferably made of a sheetmetal stamping, and consistin of the rectangular body ortion 26 having a pair of apertures therein for the screws by which it and the dial member are secured on the instrument board between them.

The pointer 22 has the hub or socket portion 31 in which is secured the end of the shaft 32 which is journaled in opposed apertures, not seen, in the body portions of the dial, 20 and the supporting plates 26. Said the bevel gear-wheel 35 meshing with the bevel gear-Wheel. 36 having the hub 37 in which is secured the upper end of the abovementioned rod 17 by the set screw 38. It will be understood, of course, that the rod 17 has had the ring 19 cut off and shortened up to the proper length sothat it will extend downward from the hub 37 and have its fork 18 co-operate with the apertures 16 in,the cross head 15 in the-customary manner.

-To support the gear wheels 35 and 36, I employ the adjustable gear mounting which preferably consists of sheet-metal stampings, and which comprises .the base portion 39 having the slot 40 therein adapted to r ister with the slot 12, in the dash boa The edges 41 having the apertures 42 for the wood screws 43 by which it is secured to the wooden dash board 11 are preferably setback from the body portion by the webs 44. Where itisto be secured to a metallic dash board 11, the machine screws 43 seen in Fig. 4 are passed through the ends of the registering slots 12 and 40 and the base,

7 ing said reduced end, the

journaled in the bearing aperture formed in the center of the similar plate 46, the base 39 and the plates and 46 each having the registering pairs of ears 47 48 and 49 turned at right angles from the lower ends of the bodies thereof, so that the pair of screws 50 passed through apertures in the ears 47 and 49 and threaded into the ears 48 form bear ings for the plates 45 and 46 upon the base piece 39 so that the gears 35 and 36 can swing to any relative angle that may be necessary for the rods. 32 and 17 to accommodate themselves to the possible, variations that may exist in different automobiles in the relative positions of the instrument or dash boards and the carburetors.

The bodies of the gear wheels 35 and 36 are identical in their configuration, and are preferably stamped up from sheet-metal, having a flat central portion with a non-circular aperture therein into which fits the reduced end 51 of its hub, so that by swagbody of the wheel may be secured upon its hub, or directly upon the end of the rod 17 or 32, if the rod were of suflicient diameter at its ends to permit of dispensing with the hub. The hubs 34 and 37 are preferably formed with a second reduced portion 52 slightly larger than the reduced portion 51, so that said second reduced portion 52 can serve as a bearing portion for the hub in the aperture in the plate 45 or 46 as the case may be. The pe-.

ripheral portions of the gear wheels 35 and 36Iare inclined relative to the fiat central portion, so that the wheels are dished, as it were, making a better mesh for the teeth when the plates 45 and 46 are adjusted at an acute angle to each other, as will ordinarily be the case.

The operation of the complete apparatus will be readily apparent, and it will be equally apparent that the gear wheels 35 and 36 when the apparatus is installed can assume any angle relative to each other and to the base piece 39 that may be necessary to adapt it to any car.

\Vhile I have shown and described my invention as embodied in the form which I at present consider best adapted to carry out its purposes, it will be understood that it is capable of modifications, and that I do not l metal having its desire to be limited in the interpretation of the following claims except as may be necessitated by the state of the prior art.

What I claim as new, and desire to. secure by Letters Patent of the United States, is:

1. As a new and useful article of manufacture, a wheel body stamped from sheetperipheral portion dished. so that the teeth of two such wheels may mesh when face to face or at a very small angle to each other.

2. In a gearing, the combination with two bearing members hinged together and to a common support. of a pair of gear wheels journaled' therein, the teeth of said gear wheels being designed to mesh despite the varying angle of the bearing members through a wide range of adjustment.

3. In a gearing, the combination with a supporting member having a pair of ears, of two bearing members. each having a pair of ears, a pair of gear wheels journaled in said bearing members, the teeth of said wheels being designed to mesh throughout a wide variation in. the angular relation of said bearing members, and a pair of bearing rods eo-operating with all three pairs of ears, substantially as described.

4. In a gearing, the combination with a supporting member having a pair ofears, of two bearing members, each having a pair of ears, a pair of gear wheels journaled in said bearing members, the teeth of said wheels being designed to mesh throughout a wide variation in the angular relation of said bearing members, and a pair of screws, each screw being passed through apertures in the adjacent ears of two of said members and threaded into the adjacent ear of the third member.

5. In a device of the class described, a

gear supporting plate having an elongated slot through the center thereof, a pair of screw holes at the sides thereof, and apair of ears standing at right angles to the body thereof at its edges.

In Witness whereof, I have hereunto set my hand this 18th day of December, 1923.

WVALTER .T. RUDOLPH.

In the presence of witness:

JOHN HOWARD MoELRoY. 

